To assess how montane meadow vegetation recovered after a wildfire that occurred in Yosemite National Park, CA in 1996, Google Earth Engine image processing was applied to leverage the entire Landsat Thematic Mapper archive from 1985 to 2012. Vegetation greenness (normalized difference vegetation index (NDVI)) was summarized every 16 days across the 28-year Landsat time series for 26 meadows. D...

A specific sample area was selected, where an assessment model made for the stability of a slope subjected to anthropogenic impacts. hillside zone from foot Vitosha and Lozen mountains in southern periphery Sofia Kettle chosen as exemplary part hazards arising Trans-Balkan valleys. The impact on their studied three particular slopes. study is about 1.25 km2 has maximum distance up 3.80 km betwe...

Building structures located on slopes behave differently than flat ground because of the different levels stepped floors made to overcome slope land, resulting in several layers basements. Also, due existence these steps and difference soil level, a retaining wall is often hold soil. The forces acting structure consist those walls, both against gravity loads earthquake loads. Often, there an av...

Heterogeneity and complexity of hydrological processes offer substantial challenges to the hydrological modeller. Some hydrologists try to tackle this problem by introducing more and more detail in their models, or by settingup more and more complicated models starting from basic principles at the smallest possible level. As we know, this reductionist approach leads to ever higher levels of equ...

BACKGROUND Continental slopes are among the steepest environmental gradients on earth. However, they still lack finer quantification and characterisation of their faunal diversity patterns for many parts of the world. METHODOLOGY/PRINCIPAL FINDINGS Changes in fish community structure and diversity along a depth gradient from 50 to 1200 m were studied from replicated stereo baited remote under...

Using the Hatcher–Oertel algorithm for finding boundary slopes of Montesinos knots, we prove the Slope Conjecture and the Strong Slope Conjecture for a family of 3-tangle pretzel knots. More precisely, we prove that the maximal degrees of the colored Jones polynomial of such a knot determine a boundary slope as predicted by the Slope Conjecture, and that the linear terms in the degrees correspo...

Motivation: it would be great if we could understand the p-adic variation of the Up-eigenvalues of modular forms as the weights and/or levels varied. (More generally, it would be really great if we could understand how the local p-adic Galois representations attached to automorphic forms behave – for example, even very weak “equidistribution” results here would presumably imply very strong auto...

We show that for certain hyperbolic manifolds all boundary slopes are slopes of π1-injective immersed surfaces, covered by incompressible embeddings in some finite cover. The manifolds include hyperbolic punctured torus bundles and hyperbolic two-bridge knots.

digital elevation model (dem) is increasingly used these days as an effective tool to extract elevation data in quantitative environmental and land management studies. the improvement of sensors and land resource satellites has made it possible to generate dem from remotely sensed data. dems which are produced from these data are applied not only in the two dimensional (2d) but also in the thre...

Abstract Landslides are one of the most vital natural hazards on Earth. To satisfy demand for protection against landslides, it is necessary to systematically assess and manage landslide risk. Landslide mechanisms related hydrology analyzed with focus in major risks, formal risk assessment methodologies presented paper. Issues discussed different steps described. The management accidents slopes...